Insulating material and method of manufacturing same.



STATES shorts-E KELLY, or rirNsnALn, narnorsj naeuiariwe mATEml-u. also merrier) oF manu-Fscrumne THE same.

v0. seams.

Specification of Letters Patent.

. Patented Feb. i807.

A praisal fil April 24 1906. Serial No sleaze.

10 QM whom it may concern:

Be it known that I, GEORGE KELLY, a citizen of the United States, residing at Hinsdale, in the county of Dupage and State of eilicient insulating material. "from printed paper-stock, which can now be purchased as refuse at very small cost compared to the cost of unprinted paper of the same rade.

The invention is primarily base on the discovery that the iIlKS employed in printing the papers contain ingredients which ban befreed and made to cooperate as a blnder and vulcamzmg agent in cementing the pap'erstock together and hardening the same to produce a highly eflicient article.

In carrying out the invention the printed matter'such'as newspapers, magazines, and the like-having printers inks thereon are placed in an ordinary beating-engine, to-

gether with a vulcanizing liquid. This liquid is preferahly'composed ofliquid glass, (silicate of sodium,) sulfur, and rubber.

Ninety-five parts ofsilicate of sodium are employed with about five parts of flowers of sulfur and ten to fifteen parts ofrubher. The various parts are measured by weight. These ingredients are first thoroughly intermixed in any welhk-nown manner and are then placed in the beating-engine with the above-described paper-stock. The engine is then operated to thoroughly pulp the paperstockfand intermingle therewith the compound, whereupon. the alkali of the liquid glass frees or liberates the ink and permits it to permeate the pulp, Inasmuch as printers ink includes material that will act as a vulcanizing the same will combine with the rut )er and sulfur. The mixed pulp is then remromd from the engine, leaving the remaining liquid therein, and is placed upon screens and the surplus liquid allowed to drain hack into. the beater. The material is then permitted to partially dry or'set, after,

and subjected to suitable vul'canizing heat. Instead of employing a pulping-engine the paper may be cut into strips, which are ground and mixed with the above-described li uor.

.t is found that the product is a highlyeilicient insulator that is both fire and moisture proof and is capable of withstanding high mechanical strain. Moreover, it is not frangible, and consequently can be advan tageously used about dynamos and other. electric machines driven at high speed,-for the jar and vibration will not affect the same. it is, moreover, capable of ahigh polish. It will thus be seen that the Waste roduct is made use of, andv not only is the her of the paper employed, but the inks and colors are also an important item and are not wasted. in the manufacture.

Having thus fully described my invention, what I claim as new, fand'desire to secure by Letters Patent, is I 1. That improvement in the process of manufacturing an insulating article, which consists in disintegrating printed material, mixinq it with a liquid alkaline and vulcaniz ing so ution, and afterward vulcanizing the same.

2', That improvement in the process or manufacturing an insulating article, which consists in disintegrating printed material, mixing with liquid glass and vulcanizing material, and afterward vulcanizing the same.

3. That improvement in the process of manufaoturin an insulating article, which consists in pulping aper with a vulcaniz'ing agent including rub er and liquid glass.

4. That improvement in the process of the same, and vulcanizing it under pressure and heat.

5. As an article of manufacture, a 'bodycom risin disinte ated material havin printers ink thereon mixed and vulcanized with a vulcanizing agent. 7

6. As an article of manufacture, a vulcanized body comprising printed material pulped in a compound that includes rubber and liquid glass.

7. ills an article of manufacture, a vulcanized body comprising fihrousmaterial pu'lped in a compound that includes rubber and liq-,1 vmy own I have hereto affixed. my signature lass. in the )Tesence of two Witnesses.

2). 1 s an armcls 0 manu'acmre, avu can- 1 w L v JP ORGE KELLY. med body cempnsmg dlslntegrated materlal A pound including rubber and liquid glass. JOHN SIGGERS,

having printers ink thereon pulped in a. com- Witnesses:

In testimony that E claim the feregoing as BLANOHE J. KALDENBAGK. 

